// JavaScript Document
var req=false, myRand;

function createREQ() {
try {
     req = new XMLHttpRequest(); /* e.g. Firefox */
     } catch(err1) {
     try {
     req = new ActiveXObject("Msxml2.XMLHTTP");
     /* some versions IE */
     } catch (err2) {
       try {
       req = new ActiveXObject("Microsoft.XMLHTTP");
       /* some versions IE */
       } catch (err3) {
        req = false;
       }
     }
   }
   return req;
}

function requestGET(url, query, req) {
myRand=parseInt(Math.random()*99999999);
req.open("GET",url+'?'+query+'&rand='+myRand,true);
req.send(null);
}

function requestPOST(url, query, req) {
req.open("POST", url,true);
req.setRequestHeader('Content-Type','application/x-www-form-urlencoded');
req.send(query);
}

function doCallback(callback,callitem) {
eval(callback+'(callitem)');
}

function doAjax(url,query,callback,reqtype,getxml) {
// create the XMLHTTPRequest object instance
	var myreq = createREQ();
	myreq.onreadystatechange = function() {
		if(myreq.readyState == 4) {
			if(myreq.status == 200) {
				var callitem = myreq.responseText;
				if(getxml==1) {
					callitem = myreq.responseXML;
				}
				doCallback(callback, callitem);
			}
		}
	}
	if(reqtype=='post') {
		requestPOST(url,query,myreq);
	} else {
		requestGET(url,query,myreq);
	}
}